Fastening device



Nov. 17, 1953 J. F GOLUBlCS "2,659,122

FASTENING DEVICE Filed March 10, 1950 Patented Nov. 17, 1953 UNITEDSTATES PATENT i oFFicE 2 Claims.

This invention relates to a fastening device adapted to hold pocketcombs or other devices of the type which are formed of half-portionsjoined in hinged relationship so as to enable the one half-portion to bein juxtapositioned relationship with respect to the other half-portionyand the prime object of the invention is to provide a simple, sturdy andefficient construction adapted to hold the half-portions of the comb ineither folded or extended position.

Other objects, features, and advantages of th invention may be observedfrom a study of the following detailed description, the drawing, and thesubjoined claims.

In the drawing: l

Figure 1 is a side-elevational view of the com of this invention infolded position.

Figures 2 and 3 are side-elevational views of the combs elements formingthe article shown in Figure l.

Figure 4 is a sectional view taken along line 4 4, Figure 1, showing themanner in which the convexe-concave teeth of the comb elements lie inback-to-back relationship when folded, and showing the spheroidal pocketbetween the teeth when the comb is folded whereby an accessor may beaccommodated therein.

Figures 5 and 6 are transverse sectional views of the sub-comb elementstaken along lines 5 5 and 6 6 in Figures 2 and 3 showing constructionrelated thereto.

Figure 7 is a side-elevational view of the slotted side of one sub-combelement of the combination, being representative of the sub-comb shownin Figure 3 and includes a nail file in elevational view'lying within arecess therefor and adjacent the convexo-concave side of certain of theteeth thereof. Y

Figure 8 is a side-elevational view of the comb which is similar toFigure l, but is modified thereover in that the nail le is shownextended to functional use position. Figure 9 is an end elevational Viewtaken along line 9 9 in Figure 8 and is'adapted to show separation ofthe half-portions or sub-combs of the assembly to release the nail fileor other accessory from there-between. v

Figure 10 is an elevational view of the comb in extended or functionaluse position; and,

Figures 11 and l2 respectively, are sectional and elevational viewsshowing the device I employ to hold the sub-combs in functionalposition, that is, in either folded or in extended position.

The device I in the present disclosure comprises two half-portions orsub-combs 2 and 3 which are hingedly joined together by a fasteningdevice 4 so as to enable the sub-combs to be folded upon themselves orextended as need be under a degree of resilient tension, as is bestshown in Figures 1 and 10.

Each of the sub-combs are formed with a body 5 having fiat and parallelfaced ends 6 from which there extends a finger I having teeth 8 rootedtherein. The teeth 8 are convexo-concave intermediately of their rootwith the fingers 'I and their free ends, so that when the comb is foldedand the teeth thereof lie in juxtapostioned relationship, there exists aspheroidal clearance 9 therebetween, and in this connection it is to benoted that the sub-comb 3 is formed with a sha1- low, right angledrecess I0 in its face 6, the utility of which, including the clearancearea 9 will be subsequently pointed out.

Each of the body portions 5 are formed with flanges II extendingsubstantially the length" thereof and are so located andproportionedthat when the comb is folded the 'teeth of the one sub-comb will liewithin and under the flange upon the other of the sub-combs, see Figure4.

It is to be noted that each of the sub-combs 2 and 3 is provided with a,transverse bore I2 to receive the fastening device 4. Since the sub'combs swing around the axis of the bore I2, it is necessary in order toproperly nest these parts that they be located with a degree ofdefinition;

accordingly, I locate the center of the bores I2' on the face portions 6of the sub-combs by reference to a radius tangential to a planecoincidental with the free ends'of the teeth 8 and extending throughdegrees to tangency at I4 with a transverse plane coincidental with therelated end of the sub-combs. The material between the pointsv I3 and I4is removed to form a uniform radial shoulder.

Beginning at point I4 the edges of the faces I are spheroidal and extendin an arc I5 to a point I5a which is coincidental with a transverselyplaced plane passing through the point of beginning of the radiusafore-mentioned. From the point I5a and outwardly therefrom in a linecoincidental with said` last mentioned transverse plane, I form ashoulder` IB, and inwardly and] 3 the shoulders IS are brought intoabutting contact and form a self-imposed lock against further rotation,thereby holding the sub-combs in end alignment with respect to oneanother.

Reference has previously been made to the fact that the sub-combs 2 and3 are hinged together by means of the fastening device indicated by thereference numeral 4.

In Figures 11 and 12 I show in detail the structure of the fasteningdevice tyhich' is Eshown as comprising the tubular ysleeves I8 Iand I9which are slidably tted together and are formed with one closed end uponeach thereof in the nature of a button-like nger grip 20 and 2 I. Thesleeve I9 is formed with diametrically opposed slots 22 to receive thelugs 23 of a cradle 24'whichis:freely movable within the bore 25thereof. A spring 26 placed Within the bore 25 is'se'ated in 'the cradle24 and is retained therein by ineans of lips 21 struck from the innerends of the sleeve I9 and `bent over the end coil ofthe spring 2B.' Thesleeve I8 is formed with diametrically 0pposed bayonet slots 28 toreceive the free end vof thelugs 23 in their extension'through'thesleeve I9, and which lugs bearupon the closed ends of the bayonet slotsunder expansive pressure vexerted by spring 26 when in functionalposition.

It is to be noted that the slot 22 is of such length as will -provide anamount of clearance 22a and 22h uponeach side of the lugs as willaccommodate positional self-adjustment of the cradle when the fasteneris assembled and in functional use. A

After the half-portions or sub-combs have been constructed asaforementioned,V they are assembled by sliding the sleeve lill throughthe bores I2, and then sliding-'the sleeve I9, with the spring 26 in itscradle 24, therein, that is, into the sleeve I8fwith the bayonet slot-28aligned to receive the free ends yof thel lugs 23. and'rotationalpressure upon-the sleeve assembly I9- will cause the lugs to travel thelengtlrof the slots 23 and upon release they will bear-upon the closedends 30 thereof as shown in "Iiig'ureY 12; Since the spring is installed'in 'the sleeve It under a predetermined degree of compression, itfollows from the disclosure that it will exert pres' sure inonedirection -upon the cradle'24 andthat this pressure is transferredthrough the lugs thereof'to the sleeve l8,and in the opposite-directionupon thelips 21 of the sleevefiwithin which it' is confined, whichpressure tends to force-the sleeve I9 inwardly of'the's'leeve It."

Thus it will be seen that the `expansive' pressure of the spring 2l is`so directed as to cause the finger grips Y and '2| to`conv`erge up'onone another in proportion to the 'degree of initial compression of thespring,y and the thickness of the material interposed between the fingergrips 29 and 2|, which in the'present instance comprise the combinedthickness of the sub-combs.

The fastening device is removed from its assembly by inward pressureupon the nger' grips and counter-rotation thereof.

From the preceding description it will be apparent to all those familiarwith the art that I have conceived a novel fastening device for a combconstruction,`a'combwhich when in extended form is adapted to any use towhich a Inward f 4 common form of comb may be put, yet at the same timethe comb in its several aspects is so constructed as to protect theteeth thereof when not in use, and that the fastening device generallyindicated at 4 and more particularly illustrated in Figures 11 and 12provides a novel and very eflicient fastening means adapted to varioususes other than that herein shown as an application thereof. y It `is tobe understood that the form of the invention herewith shown Vanddescribed is to be 4taken or considered as being the preferredembodiment of the same and that various changes in .the shape, size andarrangement of the parts may be resorted to without departing from thespirit 'of 'the invention or the scope of the subjoined claims.

1; A fastening device, a first sleeve and a second sieeve, said sleevesbeing in slidable telescopic union with one another and khaving a.Closed end in eachithereof, said rst ,sleevebeing formed with bayonetslots beginning in the lip of the open end of said sleeve and' beingterminal inf wardly thereof, said second sleeve being formed with slotsin its sides intermediately of its ends, a cradle in said second' sleeveharing laterally disposed lugs adapted to extend through the slotstherein and into said bayonet slots and in .pressure Contact with theclosed en d of Vsaid bayonet slots, and a spring seated in said cradleand kconned therein against displacement.

2. In a fastening device utilizing a pair of tele; scoped tubularsleeves comprising a first sleeve and a second sleeve, said rst tubularsleeve having an open end and a closed flanged ,end and being formedwith arcuate slots extending through the lip ofthe open end to aterminus within the walls thereof, said second tubular sleeve having anopen end and a closed flanged end and beingformed with slotsintermediate of the ends thereof, a cradle within said second sleeve,said cradle having radial lugs thereon so disposed" as to extend throughand radially from said second mentioned slots to within and upon theterminal ends of said arcuate slots in said rst mentioned sleeve, acompressed extensile springiwithin said second sleeve having one endnested in said cradle and being held confined under pressure'therein byinturned flanges on the lip on the open end of the second sleeve, saidslotted sleeves, the cradle "and spring bei-ng so constructed andarranged that upon assembly thereof said spring in its expansivepressure exerts an Voppositely directed pressure upon said sleeveswhereby they are caused to move'converginglyof one another.

JOI-1N FRANCIS GOLUBICS.

References Cited inthe le of this patent.

UNITED STATES PATENTS Number Name Date 55,349 Noyes June. 5, 1,866506,399v Henryv Oct. 10, 1833. 645,079 Finley Mar. 13,1900 2,123,068summers j July 5.' 193g 2,479,152 Taylor Aug. 16, i949

